Razor-blade holder



April 17, 192s.

, J. P. COLGROVE RAZOR BLADE HOLDER Filed Jan. 14.

u l i,

l v15o faces reawardly. i Said upper section is pro- Vffa'fsiinple,compact" and' inexpensive.l

Patented Apr. 17,1928.

JosnPH- r.' eonenovnfor BnFFnai-idfN-Ew Yonai.

itazoitrnnn HOLDER..

Application'led .Ian-ilary 1.4,A 192,5... `Serial No.

' This invention-,relates toa holderforA safety razor-blades of anystandard/type, by whiclia cutting tool ispiroduced"appropriate fortriininingpurposes of various kinds.. y y' Tliegobfject of 'theinvention is Yto' provide holder ofY tliis vcharacter which securelylocks the blade in place andjwhich'isso constructed and;I.,icirg-anized,` that itl can be easily and readily assembled anddisinenibered in` Ethe act of appl-ying and reinoving the blade;

. i holder.

, correspond Intl-ie accompanyingdrawingsz.. Y l erspective viewA of theiin- L i vigure 2 is an enlarged cen.-`- tral longitudinal section.tliereof. Figures 3,'. 4, ."5' and ,6. are ,detached perspective viewsf'tlci'e varioiispartsofthe holder.

. Figuren' is a views.

In thev preferred embodiment of the holder f i shown in the drawingsjthesaine comprisesk twofsubstantially flat bars or handle sectionsstampings or otherwise constructed,

10, 11 which may and which are superposed one on theother fordetacliably' receiving between their front l ends astandard vtype ofsafety razor blade L, 'and extend 12 or similar cutting tool. The latteris adapted to be reliablyclamped Vbetween'the.

-OPpOSng upper section lbeing somewhat longer and overhanging the frontend of the companion lower section ,11, while the rear end of the latterextends a suitable distance beyond the Y lcorrespondingy end of saidupper section, as

shown in Figs. 1 and 2.

. l`l`orv the purpose of clamping the front ends or head portions of the`handle-sections 10 and 11 to eachother with the blade 12 between'them,they are provided near their front ends and substantially centrallythereof with offset lugs orprojections 13, 14, respectively, which arepreferably hook-shaped lengthwise of the sections. As yshown in Figs. 2,Sand 4, the lug 13 of the section 10 is offset in one direction lor'downwardly and faces 'forwardly while .the lug 14 of the companionsection 11`is odset in Yas the opposite direction or upwardly yand videdin rear of its clamping lug with an opening 15 with' which the lug 14 ofthe lower handle section is adapted to interlock in the assembledposition of the parts,

said lugsletA voverlapping the rear edge of` nient j of parts,Janet-,reliablydamp-ea between-ee handler sections, beingeifecti'ially-held lateral andlongitudifn'al' displacement relafSiinilaricharacters of 'reference indicatel ing vparts"tlfirou-g horutthe several be in theiforin of metal l' faces of the handle-sections,the

--tions g together.

maps-sing t6) prevent riaeveiioagitmiini clainped I between vtheopposing faces'f offthe sections. and .itsY remaining' poiftflori;Ilying ,iia'tf' ly. agai stfthe un lerside lof :the upper section 10With-'the 111gy of the' lattefj'overiappng" 1 i f.

` displacenientofl .the sections in onedirection.y -The razor blade isvprovidedfvvi'thV the.Zeus;l toinary openings'l whichare adaptedtofinterlock. wigththey lugs ofthe handle-sec.-Vv

tions', ythenrear portion' `of thefblade being .l l.

the front edge of .the corresponding -Vblade j i f opening'. Byjthisconstructiorirland arrange-` y itheraz'or blade ;i s rigidly tive tothe; sections.

by slitting Athe sections :andtheir' rpun'@chiI'rg the .resultingItongues iin," Aoppositef directions.

'Torprevenr'thef'rer-fasen. d leLsections L 10,' 11 froiiil- "shiftingl' laterally relatively to each-other, one of them is preferablyprovided. with a` centering lug 17 arthe han- Y A clamping disk'19 lisrotatablyinounted on l.the projectedre'ar endof the handle-sec l' tionll'jand lias an upwardly `and outward-v ly offset locking lip 20arranged to oversection 10 to stitutes' a finger-piece forv convenientlyi turn ing the 'clamping diskinto andv out of its locked position. Inthe locked position of this disk, the handle-sections are, not onlysaine time held against shiftinglengthwise relative to each other in arearward direction by the abrupt edge of the disk abutting against theopposing abrupt end of the handle-section 1'0. Shifting of thesectionsin the reverse direction is preventedby the rear vend of the opening 15in the upper section bearing against thevertical portion ofthe"corresponding lug 14-of the lower section,

asfshown in Fig. 2. i

In removing theblade from this'iinproved holder, the clamping disk 19islirst turned 'lap the opposing upper side of the handle i lock therear ends of thesec-y rlhis locking lip yalso coni f held againstseparation, but they are at the y 'to nioveits lip'` 20 `out of lockedposition, 'l after which the upper handle-section,1Oisy l liftedslightly to disengage thecentering lug 17 from. its corresponding.opening l upper section is then shiftedyrearward relatively tofthecompanion .lower section 11'l 'v 80. I ranged to interlock'with avcorresponding opening 18 in the other section.-

to permit the withdrawal of the lug 14 of the latter from the opening l5in said upper section and the alining blade-opening. `Having thusseparated the handle-sectionathe blade can now be easily removed fromthe upper section lug 13. y i

In applying the blade to the holder th same is locked and clampedbetween the handle-sections by performing these acts in the reverseorder, after which the 'Clamping disk 19 is turned to bring its lip y20into locked position. .I Y This improved holder is manifestly simple and`durable in construction, it holds the blade tightly to cut tough aswell as other' materials, tsparts are so constructed as to permit theready application and removal of the blade, and it can-be manufacturedat a moderate cost. Its thin, Hat construetion makes it lightand compactand renders it especially suitable for mailing.l It

has the further advantage of positively locking the bars againstlongitudinal displacement on each other, holding their connecting hooksand openings-in proper engagement Without depending on the users graspof the handles for that purpose.

I claim as my invention z*- i l. A blade-holder, comprising a pair ofseparable bars movable .lengthwise relatively said bars against relativelongitudinaldisplacement. l

2. A blade-holder vcomprising a pair ci' separable bars movablelengthwise relatively to each other andeach having a head-portion and ahandle-portion, said ,head-portions having mutually-interiocking memberswhichl are engaged and disengaged by longitudinal movement of one bar onthe other and means for holding said bars against relativevlongitudinal' displacement, consisting of a rotary clamping dis-kmountedo n one n of said bars and having an abrupt edge arranged to bearagainst the abrupt rear end of the other bar, said disk having a lipwhich overlaps the last named bar in the normal posit-ion yoi' the disk.

Josnrnr; Cote-Rove.l

